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Finding the Fourth Proportional to 13,572.01, 18,730.47 and 7,605.01

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Solution

The fourth proportional to 13,572.01, 18,730.47 and 7,605.01 is: 10,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.01 : 18,730.47 = 7,605.01 : x
  2. Step 2: Convert to fraction form
    13,572.01/18,730.47 = 7,605.01/x
  3. Step 3: Cross multiply
    13,572.01x = 18,730.47 × 7,605.01
  4. Step 4: Simplify right side
    13,572.01x = 142,445,411.65
  5. Step 5: Solve for x
    x = 142,445,411.65/13,572.01
  6. Step 6: Final answer
    x = 10,495.53

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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.