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Finding the Fourth Proportional to 58,421.60, 87,430.80 and 35,064.80

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Solution

The fourth proportional to 58,421.60, 87,430.80 and 35,064.80 is: 52,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,421.60 : 87,430.80 = 35,064.80 : x
  2. Step 2: Convert to fraction form
    58,421.60/87,430.80 = 35,064.80/x
  3. Step 3: Cross multiply
    58,421.60x = 87,430.80 × 35,064.80
  4. Step 4: Simplify right side
    58,421.60x = 3,065,743,515.84
  5. Step 5: Solve for x
    x = 3,065,743,515.84/58,421.60
  6. Step 6: Final answer
    x = 52,476.20

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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.