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Finding the Fourth Proportional to 22,117.10, 31,041.70 and 22,117.10

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Solution

The fourth proportional to 22,117.10, 31,041.70 and 22,117.10 is: 31,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,117.10 : 31,041.70 = 22,117.10 : x
  2. Step 2: Convert to fraction form
    22,117.10/31,041.70 = 22,117.10/x
  3. Step 3: Cross multiply
    22,117.10x = 31,041.70 × 22,117.10
  4. Step 4: Simplify right side
    22,117.10x = 686,552,383.07
  5. Step 5: Solve for x
    x = 686,552,383.07/22,117.10
  6. Step 6: Final answer
    x = 31,041.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.