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Finding the Fourth Proportional to 21,695.36, 32,545.95 and 7,652.09

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Solution

The fourth proportional to 21,695.36, 32,545.95 and 7,652.09 is: 11,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.36 : 32,545.95 = 7,652.09 : x
  2. Step 2: Convert to fraction form
    21,695.36/32,545.95 = 7,652.09/x
  3. Step 3: Cross multiply
    21,695.36x = 32,545.95 × 7,652.09
  4. Step 4: Simplify right side
    21,695.36x = 249,044,451.18
  5. Step 5: Solve for x
    x = 249,044,451.18/21,695.36
  6. Step 6: Final answer
    x = 11,479.16

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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.