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Finding the Fourth Proportional to 61,220,686,430.40, 91,685,910,823.20 and 61,220,686,430.40

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Solution

The fourth proportional to 61,220,686,430.40, 91,685,910,823.20 and 61,220,686,430.40 is: 91,685,910,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,220,686,430.40 : 91,685,910,823.20 = 61,220,686,430.40 : x
  2. Step 2: Convert to fraction form
    61,220,686,430.40/91,685,910,823.20 = 61,220,686,430.40/x
  3. Step 3: Cross multiply
    61,220,686,430.40x = 91,685,910,823.20 × 61,220,686,430.40
  4. Step 4: Simplify right side
    61,220,686,430.40x = 5,613,074,396,592,744,693,760
  5. Step 5: Solve for x
    x = 5,613,074,396,592,744,693,760/61,220,686,430.40
  6. Step 6: Final answer
    x = 91,685,910,823.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.