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Finding the Fourth Proportional to 7,558.63, 10,430.18 and 7,001.35

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Solution

The fourth proportional to 7,558.63, 10,430.18 and 7,001.35 is: 9,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,558.63 : 10,430.18 = 7,001.35 : x
  2. Step 2: Convert to fraction form
    7,558.63/10,430.18 = 7,001.35/x
  3. Step 3: Cross multiply
    7,558.63x = 10,430.18 × 7,001.35
  4. Step 4: Simplify right side
    7,558.63x = 73,025,288.59
  5. Step 5: Solve for x
    x = 73,025,288.59/7,558.63
  6. Step 6: Final answer
    x = 9,661.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.