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Finding the Fourth Proportional to 6,547.02, 9,820.53 and 5,390.34

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Solution

The fourth proportional to 6,547.02, 9,820.53 and 5,390.34 is: 8,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,547.02 : 9,820.53 = 5,390.34 : x
  2. Step 2: Convert to fraction form
    6,547.02/9,820.53 = 5,390.34/x
  3. Step 3: Cross multiply
    6,547.02x = 9,820.53 × 5,390.34
  4. Step 4: Simplify right side
    6,547.02x = 52,935,995.68
  5. Step 5: Solve for x
    x = 52,935,995.68/6,547.02
  6. Step 6: Final answer
    x = 8,085.51

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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.