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Finding the Fourth Proportional to 10,813.52, 14,925.06 and 7,030.12

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Solution

The fourth proportional to 10,813.52, 14,925.06 and 7,030.12 is: 9,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.52 : 14,925.06 = 7,030.12 : x
  2. Step 2: Convert to fraction form
    10,813.52/14,925.06 = 7,030.12/x
  3. Step 3: Cross multiply
    10,813.52x = 14,925.06 × 7,030.12
  4. Step 4: Simplify right side
    10,813.52x = 104,924,962.81
  5. Step 5: Solve for x
    x = 104,924,962.81/10,813.52
  6. Step 6: Final answer
    x = 9,703.13

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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.