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Finding the Fourth Proportional to 8,938.41, 13,347.42 and 7,298.16

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Solution

The fourth proportional to 8,938.41, 13,347.42 and 7,298.16 is: 10,898.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.41 : 13,347.42 = 7,298.16 : x
  2. Step 2: Convert to fraction form
    8,938.41/13,347.42 = 7,298.16/x
  3. Step 3: Cross multiply
    8,938.41x = 13,347.42 × 7,298.16
  4. Step 4: Simplify right side
    8,938.41x = 97,411,606.75
  5. Step 5: Solve for x
    x = 97,411,606.75/8,938.41
  6. Step 6: Final answer
    x = 10,898.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.