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Finding the Fourth Proportional to 35,525.40, 53,312.40 and 19,730.40

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Solution

The fourth proportional to 35,525.40, 53,312.40 and 19,730.40 is: 29,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,525.40 : 53,312.40 = 19,730.40 : x
  2. Step 2: Convert to fraction form
    35,525.40/53,312.40 = 19,730.40/x
  3. Step 3: Cross multiply
    35,525.40x = 53,312.40 × 19,730.40
  4. Step 4: Simplify right side
    35,525.40x = 1,051,874,976.96
  5. Step 5: Solve for x
    x = 1,051,874,976.96/35,525.40
  6. Step 6: Final answer
    x = 29,609.10

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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.